27726674671 has 16 divisors (see below), whose sum is σ = 29620961280. Its totient is φ = 25862094720.

The previous prime is 27726674659. The next prime is 27726674681. The reversal of 27726674671 is 17647662772.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27726674671 - 2²⁵ = 27693120239 is a prime.

It is a super-2 number, since 2×27726674671² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27726674621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2133090 + ... + 2146048.

It is an arithmetic number, because the mean of its divisors is an integer number (1851310080).

Almost surely, 2^27726674671 is an apocalyptic number.

27726674671 is a deficient number, since it is larger than the sum of its proper divisors (1894286609).

27726674671 is a wasteful number, since it uses less digits than its factorization.

27726674671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14094.

The product of its digits is 8297856, while the sum is 55.

The spelling of 27726674671 in words is "twenty-seven billion, seven hundred twenty-six million, six hundred seventy-four thousand, six hundred seventy-one".